Merge pull request 'fix: use ln -sf instead of update-alternatives --set for iptables-nft' (#28 ) from fix/vpn-iptables-nft-v3 into master

Reviewed-on: #28
fix: use ln -sf instead of update-alternatives --set
2026-05-13 16:59:50 +00:00 · 2026-05-13 12:58:43 -04:00 · 2026-05-13 16:49:23 +00:00
1 changed files with 5 additions and 5 deletions
--- a/vpn/Dockerfile
+++ b/vpn/Dockerfile
@@ -2,8 +2,8 @@
 # Fixes crash-loop when host kernel lacks legacy iptable_nat module.
 FROM ghcr.io/wg-easy/wg-easy:latest

-# The upstream image defaults to iptables-legacy via update-alternatives.
-# Switch iptables to the nftables backend (already provided by the 'iptables'
-# package on Alpine 3.18+). No apk add needed — iptables-nft is built-in.
-RUN update-alternatives --set iptables /usr/sbin/iptables-nft && \
-    update-alternatives --set ip6tables /usr/sbin/ip6tables-nft
+# The upstream image registers only iptables-legacy with update-alternatives.
+# iptables-nft binary exists but isn't registered as an alternative key.
+# Override the alternatives-managed symlinks directly.
+RUN ln -sf /usr/sbin/iptables-nft /usr/sbin/iptables && \
+    ln -sf /usr/sbin/ip6tables-nft /usr/sbin/ip6tables
Author	SHA1	Message	Date
Thierry Pouplier	29ae32a1c5	Merge pull request 'fix: use ln -sf instead of update-alternatives --set for iptables-nft' (#28 ) from fix/vpn-iptables-nft-v3 into master Reviewed-on: #28	2026-05-13 16:59:50 +00:00
Hermes	8dff094768	fix: use ln -sf instead of update-alternatives --set update-alternatives --set fails because the base image only registers iptables-legacy as an alternative. The iptables-nft binary (/usr/sbin/iptables-nft) exists but isn't in the alternatives database. Direct ln -sf bypasses this.	2026-05-13 12:58:43 -04:00
Thierry Pouplier	ec08f5eb5d	Merge pull request 'fix: remove apk add iptables-nft — built-in on Alpine 3.18+' (#27 ) from fix/vpn-iptables-nft-v2 into master Reviewed-on: #27	2026-05-13 16:49:23 +00:00